Paper-feeding machine.



J. H. BRADY; YAPEB FEEDING MAOHINE.

APPLICATION FILED JUNE 10, 1910.

Patented Sept. 12, 1911.

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mom/Er J. H. BRADY.

PAPER FEEDING MACHINE. APPLIOATION FILED 111111110; 1910.

1,003,087. Patented Sept. 12,1911.

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JAMES H. BRADY, 0F LOUISVILLE, KENTUCKY.

PAPER-FEEDING- MACHINE.

Specification of Letters Patent.

Patented Sept. 12, 1911.

Application filed June 10, 1910. Serial No. 566,249.

To all whom it may concern:

Be it known that I, JAMES H. BRADY, a citizen of the United States of America, residing in Louisville, county of Jefferson, State of Kentucky, have invented certain Improvements in Paper-Feeding Machines, of which the following lSgZt specification.

In the paper feeding machine of this invention the sheets of paper are separately fed from the bottom of a pile held in a suitable hopper through a gateway at one end of it formed by the adjacent peripheries of two rollers. These rollers have friction surfaces, preferably of rubber, the lower one beingpositively intermittently driven and the upper one is free to'rotate, when a sheet is being fed, under adjustable resistance as on its shaft. An auxiliary feeder is provlded to act, in unison with the intermittently fed roller, on the sheet being fed and a pair of delivery rollers is located at the front ofthe gateway to take the sheets from the main feeding roller as they are fed All of the feeding surfaces are of rubber or other frictional material and the shafts of' the lower rollers and the auxiliary feeder are continuously driven; the main feeding roller, constituting the lower part of the gateway, is connected to its shaft by a suitable clutch controlled by a cam arranged to disengage the roller from its shaft after the sheet being fed is under the control of the delivery rollers and to allow the clutch to become active when another sheet is to be separated from the pile.

The roller constituting the upper part of the gateway is pressed and held toward the main feeding roller by adjustable yielding means, as springs, and the resistance to its rotation is, by the brake, so adjusted that while the sheet being fed by the main feeding roller may slideagainst its periphery it may and will to some extent move with the sheets when acted upon by the delivering rollers, and thus present different parts of its periphery to the sheets and so prevent unevenness of wear of its surface due to the action of the sheets sliding and rubbing against it, thereby insuring a uniformity of action 'on all of the sheets fedbetween it and the main feeding roller after the parts have been. properly adjusted to handle the particular kind of paperor other material in sheets to be fed.

In the accompanying drawings, Figure 1 embodying the features of this invention.

Fig. 2 is a vertical section, on an enlarged scale, of the feeding devices. Fig. 3 is a vertical section of the machine taken on the line 3, 3, Fig. 1. Fig.4 is a longitudinal section of one end of the main feedin roller, taken on the line 4, 4;, Fig. 5, showmg the clutch mechanism, and Fig. 5' is an end View of this roller showing the clutch operating lever, taken on line 5, 5, Fig. 4:. V

The sheets a of paper or other material to be fed are placed 1n a hopper I) having adjustable sides as is usual in such devices to accommodate sheets of different sizes. At the front or feeding end of the hopper are located two rollers c and d whose peripheries at'their adjacent parts form the gateway of Y the hopper. The shaft e of the upper roller 0 isheld in bearing blocks fitted to slide vertically in the .frame of the machine, said bearings being upheld by springs 7 against springs g seated on the tops of the bearing blocks and adjusted by screws h to impart the desired grip between this roller and the main feeding roller d. One end of the shaft of the roller 0 is provided with a brake drum or pulley i, embraced by an adjustable brake band 9' held from rotating with the shaft by a pin is projecting from theframe and resistantly clamped on the drum by a spring Z and its adjustingnut m. 1

The main feeding roller d, constituting the lower part of the gateway of the hopper, is fitted to rotate on its shaft n, which is continuously rotated, and is intermittently connected thereto by a clutch mechanism, consist-ing of a divided band or ring 0 whose periphery acts against the inside of the flanged end of the roller d, a tappet p, for forcing the band 0 against the flange, secured to a shaft 9 having abearing in a plate 1" secured by its hub to the shaft 11, an arm 8 secured to the other ends of the shaft g, a cam t secured to the frame of the machine and acted upon by a r-(Hler on the end of the arm .9 and a spring a located between the arm 3 and the lnlhuofthe plate '2', whose function is to hold the roller of the arm 8 on the cam 25 and to cause the band or ring 0 of the clutch to bear against its seat in the flange of the roller (l and connect said roller to its shaft or when the arm 8 is free of the active surface of the cam t.

The auxiliary feed o carried on a shaft w is made in sections to act, through slots tom sheet of material, the periphery of said feeder being so shaped as to extend a shaft .y

through the bottom of the hopper during only a portion of the revolution of the feeder to act on the bottom ofthe sheet at the time the roller 02 is feeding a sheet forward, or it may be set to act on the bottom sheet to insure it being engaged by the roller when said roller starts to rotate.

The under delivery roller a: is carried by having hearings in the frame and in line with the shafts a and w, its counter roller 2 being adjustably held'against it by screws in the ordinary manne The shafts d, w and y are caused to rotate together in the same direction by pairs of miter gears 1, 2 and 3 connecting them toa side shaft 4:, respectively. A guide plate 5 located in -front of the delivery rollers directs the sheets as desired as they leave the delivery rollers.

The front edges of the pile of sheets to be fed lie a ainst the under side of the roller 0, the ottom one being just in the bite of the rollers 0 and d, which are stationary as long as the roller of the arm 8 is.on the cam t, and when this roller moves off the cam, as it is about to'do in Fig. 2, the roller 0? is connected to its shaft 4% by the spring a actingto force the clutch band 0 "against the flange of the roller 01. The

leaving 'holding force of its brake when.

sheet is now fed forward by the roller 03, being assisted by the auxiliary feeder 'v, and when it is well within the grip of the delivery rollers w and .z the arm 8 is again moved by the cam t to release the clutch, the roller d free to be moved by the stress of the pull of the sheet now under the control of the delivery rollers. The upper roller 0 may also partly rotate against the the bottom sheet is moving from the hopper, and so automatically shift the portion of its periphery in the gateway which may be worn away due to the rubbing action of the their adjacent sheets when the roller does not move with the'sheets, thus 'insurin uniformity in the wear of the'periphery o the roller.

Motion from any suitable source may be imparted to any of the shafts, for instance the shaft y may be provided with a power receiving gear 6.

I claim--- 1. A paper feeding machine,

comprising a hopper,

two rollers whose peripheries at parts constitute the gateway of the hopper, means for frictionally holding the upper roller against free rotation when a sheet is being fed by the lower the upper roller to shift or partly rotate when the sheet is being pulled from the rollers, and means for positively intermittently rotating the lower main feeding roller whereby the bottom edges abutting against the upper roller is fed forward between the rollers when the lower roller rotates.

2. A paper feeding machine, compris ng a hopper, two rollers provided with friction surfaces, as .rubber, whose peripheries at their adjacent parts constitute the gateway of the hopper, means for frictionally holding the upper roller against free rotation when a sheet is being fed by the lower roller and permitting the upper roller to shift or partly rotate when the sheet is being pulled from the rollers, and means for positively intermittently rotatin the lower main feeding roller whereby the bottom sheet of a pile of sheets with their front edges abutting against the upper roller is fed forward between the rollers when the lower roller rotates.

3. A paper feeding machine, comprising a hopper, two rollers whose peripheries at their adjacent parts constitute the gateway of the hopper, means for frictionally holding the upper roller against free rotation,

means for positively intermittently rotating front edges abutting against the upper roller which is then held stationary by its Qfrictional holding means is fed forward between the rollers when the lower roller rotates, and a pair of delivery rollers to which the sheet presented by the lower main feeding roller is pulled from the two rollers, thereby rotating the lower roller and shifting the surface of or partly rotating the upper roller. i

4. A paper feeding machine, comprising a hopper, two rollers whose peripheries at their adjacent parts constitute the gateway of the hopper, means for frictionally holding the upper roller against free rotation, means for positively intermittently rotating the lower main feeding roller whereby the bottom sheet of a pile of sheets with their front edges abutting against the upper roller which is then held stationary by its frictional holding means is fed forward between the rollers when the lower roller rotates, an auxiliary friction feeder ada ted to act on the bottom sheet to cause its fibnt edge to be acted upon by the lower roller, and a pair of delivery rollers to which the sheet presented by the lower main feeding roller is pulled from the two rollers, thereby rotating the lower roller and shifting the surface of or rollerv 5. In'a paper feeding machine, a hopper, a roller at oneend of the hopper against which the front edges of a pile of sheets abut, a friction device, as an adjustable brake, acting on the shaft of this roller -v hold it against free rotation, a main feeding partly rotating the upper,

roller located beneath the frictionally heldroller and loosely fitted on its shaft, a spring which the front edges ofa pile of sheetsv abut, a friction device, as an adjustable brake, acting on the shaft ofthis roller to hold it against free rotation, a main feeding roller located beneath the frictionally held roller and loosely fitted on its shaft, a spring actuated clutch carried by the shaft, a'sta- 1 tionary cam for setting the clutch to'disconnect the roller from the shaft during a portion of the rotation of the shaft, means for continuously rotating the shaft, and a pair of delivery rollers to which the fed sheet is presented by the main feeding roller, and

. the lower roller of which is connected to rotate with the shaft of the main feeding roller. v

7 In a paper feedin machine, a hopper, a roller at one end 0 the hopper against which the front edges of a p1le of sheets abut, a friction device, as an adjustable brake, acting on the shaftof this roller to hold it against free rotation, a main feeding roller locatedbeneath the frictionally held roller and loosely fitted on its shaft, a spring actuated clutch carried by the shaft, a stationary cam for setting the clutch to disconnect the roller from the shaft during a portion of the rotation of the shaft, whereby the bottom sheet of a pile in the hopper is fed forward by the feeding roller, means for continuously rotating the shaft, an auxiliary feeder carried by a shaft connected to rotate with the continuously rotated shaft of the "main feed roller and to act on the bottom sheet in the hopper when the main feeding roller is feeding said sheet forward, and a pair of delivery rollers to which the fed sheet, is presented by the main feeding roller and the lower roller of which is connected to rotate with the shaft of the main feeding roller, the frictionally held roller being shifted or partly rotated by the sheet drawn forward by the delivery rollers.

In testimony whereof,LI have hereunto subscribed my name.

. JAMES H. BRADY, Witnesses:

- B. S. BECKER,

THEODORE V. SAMUEIIs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

